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US2986341A
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Pilfer proof aerating device
Assignee: WRIGHTWAY ENGINEERING Co
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Filing: 1958-05-27
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Granted: 1961-05-30
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Goodrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:00
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/08; E03C1/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US641191A
Cited
US1506184A
Cited
US2067028A
Cited
US2179045A
Cited
US2811340A
Cited
US2761662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |